BMW M73

BMW M73 engine
Overview
Manufacturer BMW
Production 19932002
Combustion chamber
Configuration 60° V12
Chronology
Predecessor BMW M70
Successor BMW N73

The BMW M73 is a 60° V12 SOHC piston engine which replaced the M70 and was produced from 1993-2002.

Design

Compared with its M70 predecessor, the M73 features increased displacement thanks to increased bore (85mm up from 84mm) and stroke (79mm up from 75mm), and an updated roller-rocker valve-train.[1] While most other engines in the BMW range had switched to DOHC and 4 valves per cylinder, the M73 used SOHC and 2 valves per cylinder.[2]

Some versions of the engine have two separate Bosch Motronic ECUs, while others use a single Siemens ECU.

Models

EngineDisplacementPowerTorqueRedlineYear
M73B545,379 cc (328 cu in)240 kW (320 hp) @ 5000490 N·m (360 lb·ft) @ 390060001994
M73TUB541998

M73B54

Applications:

M73tuB54

The M73tu won the "Above 4 L" category of the International Engine of the Year awards for 1999.[3]

Applications:

References

See also


This article is issued from Wikipedia - version of the Tuesday, October 20, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.